Merging 40 years of heavy industrial manufacturing with elite aerodynamic performance.
From the blast furnaces of the Ruhr valley to the hyperscale clusters of Frankfurt. EVG Lufttechnik has supported the German steel industry for decades. Now, we are re-engineering that heritage for the Green Steel revolution.
We are not a catalog supplier. We are an engineering task force located in the heart of Germany's industrial region (Stuttgart), dedicated to solving the complex airflow and cooling problems that off-the-shelf components cannot handle.
Our genesis combines two distinct disciplines:
Steel Mills • Blast Furnaces • ATEX Zones
Hyperscale Data Centers • AI Clusters • Clean Rooms
With over 40 years of experience in heavy-duty ventilation, EVG provides the manufacturing muscle. We have evolved from a specialist workshop into an international group, trusted by industries where failure is not an option—from automotive testing to chemical processing.
Born from the extreme demands of wind tunnel engineering, TunnelTech brings world-class fluid dynamics expertise. Originally designing for human flight—where air turbulence and inefficiency are safety risks—this technology is now repurposed to optimize airflow in mission-critical data centers.
Together, we deliver a unique value proposition: The durability of heavy industry with the precision of aerospace engineering.
In an era of mass-produced plastic fans, we remain committed to bespoke precision.
"Where others say 'that is not possible' or 'it's not in the catalog,' we begin our work."
Data centers today face unique spatial constraints, retrofitting challenges, and strict noise regulations that standard units cannot satisfy.
We do not simply assemble parts; we engineer individual solutions. Whether it is a custom impeller geometry to match a specific pressure curve or a silent cooling array for a generator in a residential zone, we work directly on the physics of the problem. We stay close to the fan, close to the requirements, and close to the solution.
Designed to match your specific pressure curve requirements
Noise-optimized solutions for residential and sensitive environments
Every solution starts with fluid dynamics analysis, not catalog browsing
Optimized Airflow: Applying wind tunnel physics to server heat rejection.
Precision Manufacturing in Stuttgart: Custom fabrication for non-standard cooling requirements.
Quality is not a marketing term; it is our location. Our headquarters and production facilities are located in Eberdingen-Hochdorf (Stuttgart Region), giving us direct access to Germany's premier supply chain of metal fabrication and engineering talent.
We design, cut, bend, weld, and balance all core components in-house. This ensures that every unit leaving our factory meets the highest standards of functionality and longevity.
Our 5-axis machining capabilities allow us to move from fluid dynamic simulation (CFD) to physical testing faster than competitors relying on global supply chains.
Our systems are documented as some of the most energy-efficient and silent on the market—proven in the harsh reality of wind tunnel operations and now available for your facility.
We are driven by a single goal: Efficiency.
Whether it is reducing the PUE (Power Usage Effectiveness) of a hyperscale facility or ensuring a retrofitted data center meets the new Energieeffizienzgesetz (EnEfG), we guide our clients from concept to execution.
We don't just sell fans; we insure the safety of your investment through superior engineering.
Every system backed by rigorous CFD simulation and real-world testing
Engineered to meet EnEfG, EED, and international efficiency standards
From concept to commissioning, we're with you every step
Let's discuss how our precision-engineered cooling solutions can transform your data center's thermal management.